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WWUS20 KWNS 101930

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COZ000-KSZ000-NEZ000-WYZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 408

NWS STORM PREDICTION CENTER NORMAN OK

130 PM MDT WED JUL 10 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN COLORADO

  WESTERN KANSAS

  SOUTHWEST NEBRASKA

  SOUTHEAST WYOMING



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 130 PM

  UNTIL 900 PM MDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL

    EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  A FEW TORNADOES POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90

STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTHEAST OF

CHEYENNE WYOMING TO 15 MILES SOUTHWEST OF SPRINGFIELD COLORADO.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 406...WW 407...



DISCUSSION...SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER

THE FOOTHILLS OF COLORADO AND DRIFT EASTWARD...WHILE OTHER CLUSTERS

OF STORMS FORM FARTHER EAST OVER THE HIGH PLAINS THIS AFTERNOON.

ALL STORMS WILL TRACK EAST-SOUTHEASTWARD ACROSS THE WATCH AREA

THROUGH THE EVENING.  SUPERCELLS CAPABLE OF LARGE HAIL AND DAMAGING

WINDS ARE MOST LIKELY OVER THE NORTHERN PORTIONS OF THE

WATCH...WHILE MORE MULTICELL STORMS PRODUCING LOCALLY GUSTY/DAMAGING

WINDS ARE MORE LIKELY OVER THE SOUTH.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 28030.





...HART

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